八角形、椭圆型金属环垫尺寸（摘自HG20633-97）
a)八角型 b)椭圆型
公称通径
|
PN2.0 Mpa(Class 150)
|
PN5.0 Mpa(Class 300)和PN11.0 Mpa(Class 600)
|
NPS/
in
|
DN
|
环号
R
|
节径
P
|
环宽
A
|
环高
|
环平面
宽度
C
|
环号
R
|
节径
P
|
环宽
A
|
环高
|
环平面
宽度
C
|
八角形
H
|
椭圆形
B
|
八角形
H
|
椭圆形
B
|
|
15
|
|
R11
|
34.14
|
6.35
|
11.11
|
9.53
|
4.32
|
|
20
|
R13
|
42.88
|
7.94
|
14.29
|
12.7
|
5.23
|
1
|
25
|
R15
|
47.62
|
7.94
|
14.29
|
12.7
|
5.23
|
R16
|
50.8
|
7.94
|
14.29
|
12.7
|
5.23
|
|
32
|
R17
|
57.15
|
7.94
|
14.29
|
12.7
|
5.23
|
R18
|
60.32
|
7.94
|
14.29
|
12.7
|
5.23
|
|
40
|
R19
|
65.07
|
7.94
|
14.29
|
12.7
|
5.23
|
R20
|
68.27
|
7.94
|
14.29
|
12.7
|
5.23
|
2
|
50
|
R22
|
82.55
|
7.94
|
14.29
|
12.7
|
5.23
|
R23
|
82.55
|
11.11
|
17.46
|
15.88
|
7.75
|
|
65
|
R25
|
101.6
|
7.94
|
14.29
|
12.7
|
5.23
|
R26
|
101.6
|
11.11
|
17.46
|
15.88
|
7.75
|
3
|
80
|
R29
|
114.3
|
7.94
|
14.29
|
12.7
|
5.23
|
R31
|
123.82
|
11.11
|
17.46
|
15.88
|
7.75
|
4
|
100
|
R36
|
149.22
|
7.94
|
14.29
|
12.7
|
5.23
|
R37
|
149.22
|
11.11
|
17.46
|
15.88
|
7.75
|
5
|
125
|
R40
|
171.45
|
7.94
|
14.29
|
12.7
|
5.23
|
R41
|
180.98
|
11.11
|
17.46
|
15.88
|
7.75
|
6
|
150
|
R43
|
193.68
|
7.94
|
14.29
|
12.7
|
5.23
|
R45
|
211.12
|
11.11
|
17.46
|
15.88
|
7.75
|
8
|
200
|
R48
|
247.65
|
7.94
|
14.29
|
12.7
|
5.23
|
R49
|
269.88
|
11.11
|
17.46
|
15.88
|
7.75
|
10
|
250
|
R52
|
304.8
|
7.94
|
14.29
|
12.7
|
5.23
|
R53
|
323.85
|
11.11
|
17.46
|
15.88
|
7.75
|
12
|
300
|
R56
|
381
|
7.94
|
14.29
|
12.7
|
5.23
|
R57
|
381
|
11.11
|
17.46
|
15.88
|
7.75
|
14
|
350
|
R59
|
396.88
|
7.94
|
14.29
|
12.7
|
5.23
|
R61
|
419.1
|
11.11
|
17.46
|
15.88
|
7.75
|
16
|
400
|
R64
|
454.03
|
7.94
|
14.29
|
12.7
|
5.23
|
R65
|
469.9
|
11.11
|
17.46
|
15.88
|
7.75
|
18
|
450
|
R68
|
517.53
|
7.94
|
14.29
|
12.7
|
5.23
|
R69
|
533.4
|
11.11
|
17.46
|
15.88
|
7.75
|
20
|
500
|
R72
|
558.8
|
7.94
|
14.29
|
12.7
|
5.23
|
R73
|
584.2
|
12.7
|
19.05
|
17.46
|
8.66
|
22
|
550
|
－
|
R81
|
635
|
14.29
|
19.05
|
－
|
9.58
|
24
|
600
|
R76
|
673.1
|
7.94
|
14.29
|
12.7
|
5.23
|
R77
|
692.15
|
15.88
|
22.23
|
20.54
|
10.49
|
公称通径
|
PN15.0 Mpa(Class 900)
|
PN26.0 Mpa(Class 1500)
|
NPS/
in
|
DN
|
环号
R
|
节径
P
|
环宽
A
|
环高
|
环平面
宽度
C
|
环号
R
|
节径
P
|
环宽
A
|
环高
|
环平面
宽度
C
|
八角形
H
|
椭圆形
B
|
八角形
H
|
椭圆形
B
|
|
15
|
R12
|
39.67
|
7.94
|
14.29
|
12.7
|
5.23
|
R12
|
39.67
|
7.94
|
14.29
|
12.7
|
5.23
|
|
20
|
R14
|
44.45
|
7.94
|
14.29
|
12.7
|
5.23
|
R14
|
44.45
|
7.94
|
14.29
|
12.7
|
5.23
|
1
|
25
|
R16
|
50.8
|
7.94
|
14.29
|
12.7
|
5.23
|
R16
|
50.8
|
7.94
|
14.29
|
12.7
|
5.23
|
|
32
|
R18
|
60.32
|
7.94
|
14.29
|
12.7
|
5.23
|
R18
|
60.32
|
7.94
|
14.29
|
12.7
|
5.23
|
|
40
|
R20
|
68.28
|
7.94
|
14.29
|
12.7
|
5.23
|
R20
|
68.28
|
7.94
|
14.29
|
12.7
|
5.23
|
2
|
50
|
R24
|
95.25
|
11.11
|
17.46
|
15.88
|
7.75
|
R24
|
95.25
|
11.11
|
17.46
|
15.88
|
7.75
|
|
65
|
R27
|
107.95
|
11.11
|
17.46
|
15.88
|
7.75
|
R27
|
107.95
|
11.11
|
17.46
|
15.88
|
7.75
|
3
|
80
|
R31
|
123.82
|
11.11
|
17.46
|
15.88
|
7.75
|
R35
|
136.52
|
11.11
|
17.46
|
15.88
|
7.75
|
4
|
100
|
R37
|
149.22
|
11.11
|
17.46
|
15.88
|
7.75
|
R39
|
161.92
|
11.11
|
17.46
|
15.88
|
7.75
|
5
|
125
|
R41
|
180.98
|
11.11
|
17.46
|
15.88
|
7.75
|
R44
|
193.68
|
11.11
|
17.46
|
15.88
|
7.75
|
6
|
150
|
R45
|
211.12
|
11.11
|
17.46
|
15.88
|
7.75
|
R46
|
211.12
|
12.7
|
19.05
|
17.46
|
8.66
|
8
|
200
|
R49
|
269.88
|
11.11
|
17.46
|
15.88
|
7.75
|
R50
|
269.88
|
15.88
|
22.23
|
20.64
|
10.49
|
10
|
250
|
R53
|
323.85
|
11.11
|
17.46
|
15.88
|
7.75
|
R54
|
323.85
|
15.88
|
22.23
|
20.64
|
10.49
|
12
|
300
|
R57
|
381
|
11.11
|
17.46
|
15.88
|
7.75
|
R58
|
381
|
22.23
|
28.58
|
26.99
|
14.81
|
14
|
350
|
R62
|
419.1
|
15.88
|
22.23
|
20.64
|
10.49
|
R63
|
419.1
|
25.4
|
33.34
|
31.75
|
17.3
|
16
|
400
|
R66
|
469.9
|
15.88
|
22.23
|
20.64
|
10.49
|
R67
|
469.9
|
28.58
|
36.51
|
34.93
|
19.81
|
18
|
450
|
R70
|
533.4
|
19.05
|
25.4
|
23.81
|
12.32
|
R71
|
533.4
|
28.58
|
36.51
|
34.93
|
19.81
|
20
|
500
|
R74
|
584.2
|
19.05
|
25.4
|
23.81
|
12.32
|
R75
|
584.2
|
31.75
|
39.69
|
38.1
|
22.33
|
24
|
600
|
R78
|
692.15
|
25.4
|
33.34
|
31.75
|
17.3
|
R79
|
692.15
|
34.93
|
44.45
|
41.28
|
24.82
|
公称通径
|
PN42.0 MPa(Class 2500)
|
NPS/
in
|
DN
|
环号
R
|
节径
P
|
环宽
A
|
环高
|
环平面
宽度
C
|
八角形
H
|
椭圆形
B
|
|
15
|
R12
|
39.67
|
7.94
|
14.29
|
12.7
|
5.23
|
|
20
|
R14
|
44.45
|
7.94
|
14.29
|
12.7
|
5.23
|
1
|
25
|
R16
|
50.8
|
7.94
|
14.29
|
12.7
|
5.23
|
|
32
|
R18
|
60.32
|
7.94
|
14.29
|
12.7
|
5.23
|
|
40
|
R20
|
68.28
|
7.94
|
14.29
|
12.7
|
5.23
|
2
|
50
|
R24
|
95.25
|
11.11
|
17.46
|
15.88
|
7.75
|
|
65
|
R27
|
107.95
|
11.11
|
17.46
|
15.88
|
7.75
|
3
|
80
|
R31
|
123.82
|
11.11
|
17.46
|
15.88
|
7.75
|
4
|
100
|
R37
|
149.22
|
11.11
|
17.46
|
15.88
|
7.75
|
5
|
125
|
R41
|
180.98
|
11.11
|
17.46
|
15.88
|
7.75
|
6
|
150
|
R45
|
211.12
|
11.11
|
17.46
|
15.88
|
7.75
|
8
|
200
|
R49
|
269.88
|
11.11
|
17.46
|
15.88
|
7.75
|
10
|
250
|
R53
|
323.85
|
11.11
|
17.46
|
15.88
|
7.75
|
12
|
300
|
R57
|
381
|
11.11
|
17.46
|
15.88
|
7.75
|
